4 Jan
2018
4 Jan
'18
1:03 p.m.
http://www.zdnet.com/article/intel-starts-issuing-patches-for-meltdown-spec…
?
this ?just ?hit ?my email box..... Ed#
?
In a message dated 1/4/2018 1:54:43 PM US Mountain Standard Time, cctalk at classiccmp.org
writes:
?
From the exploit homepage (https://spectreattack.com/) , it seems like the
Meltdown vulnerability affects all out-of-order executing Intel *branded*
CPUs (from the P6 onward), and the Spectre vulnerability potentially
impacts all superscalar processors of...all brands potentially :(
Sophie
On Thu, Jan 4, 2018 at 3:44 PM, jim stephens via cctalk <
cctalk at classiccmp.org> wrote:
On 1/4/2018 12:34 PM, Ed Sharpe via cctalk wrote:
what about xenon processors??
ed#
In a message dated 1/4/2018 1:18:14 PM US Mountain Standard Time,
cctalk at classiccmp.org writes:
There is no difference between them and any other intel x86 or x64
processor as far as the flaw involved.
Though they are not mentioning it, I suspect one can target P3 and P4
equally well with the exploit. It has been around that long.
thanks
Jim
----- Original Message -----
From: "Warner Losh via cctalk" <cctalk at classiccmp.org>
To: "Murray McCullough" <c.murray.mccullough at gmail.com>;
"General
Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org>
Sent: Thursday, January 04, 2018 1:05 PM
Subject: Re: Spectre & Meltdown
On Thu, Jan 4, 2018 at 11:00 AM, Murray McCullough via cctalk <
cctalk at classiccmp.org> wrote:
This may be off-topic but these latest uprocessor exploits has raised
--------
Finally, an excuse to use all those old 486 boxes...
m
a question: Are the 'old/classic'
uprocessors using x86 technology in
the same boat? The very earliest ones, i.e., 1970s and early 80's.
probably not. How many are actually in use and/or on the Net?
I've seen it reported, but haven't verified, that this bug extends
about
20
years back in the past to the Pentium Pro/Pentium II class of machines.
If
I read that correctly, there's only two generations of Pentium not
affected, the P54C and P55C, the former of F00F fame... 386 and 486 CPUs
apparently aren't affected since they didn't have speculative execution.
The 8088/8086/80186/80286 presumably are also immune... If you extend
things further back, CP/M on Z80/8080 is also fine, but I don't think
those
are properly x86 :)
Warner